Merge pull request #4 from pawamoy/files

Fix Torrent.files property

Author: pawamoy

tpb/tpb.py

@@ -351,8 +351,7 @@ def info(self):
     @property
     def files(self):
         if not self._files:
-            path = '/ajax_details_filelist.php?id={id}'.format(id=self.id)
-            url = self.url.path(path)
+            url = self.url.path('/ajax_details_filelist.php').query_param('id', self.id)
             request = get(str(url), headers=headers())
             root = html.fromstring(request.text)
             rows = root.findall('.//tr')